CVE-2021-1551 Explained : Impact and Mitigation
Discover the details of CVE-2021-1551 involving multiple command injection vulnerabilities in Cisco Small Business Wireless Access Points. Learn about the impact, affected systems, and mitigation steps.
Cisco Small Business Wireless Access Points have been found with multiple vulnerabilities that could enable an authenticated attacker to execute malicious commands with root privileges.
Understanding CVE-2021-1551
This CVE involves command injection vulnerabilities in the web-based management interface of specific Cisco Small Business Wireless Access Points.
What is CVE-2021-1551?
CVE-2021-1551 refers to the command injection vulnerabilities present in Cisco Small Business 100, 300, and 500 Series Wireless Access Points. These vulnerabilities could be exploited by an authenticated remote attacker to execute arbitrary commands with root privileges on the affected device.
The Impact of CVE-2021-1551
The impact of CVE-2021-1551 is rated as moderate with a CVSS v3.1 base score of 4.7. An attacker with valid administrative credentials could potentially compromise the security of the device by leveraging these vulnerabilities.
Technical Details of CVE-2021-1551
This section delves into the technical aspects of the CVE.
Vulnerability Description
The vulnerabilities arise from improper validation of user-supplied input in the web-based management interface. Attackers can exploit this by sending crafted HTTP requests to the system, leading to command injection.
Affected Systems and Versions
The affected systems include Cisco Small Business 100, 300, and 500 Series Wireless Access Points. The specific affected versions are not available.
Exploitation Mechanism
To exploit these vulnerabilities, an attacker needs valid administrative credentials for the device and can perform command injection attacks remotely.
Mitigation and Prevention
Here are the steps to mitigate and prevent exploitation of CVE-2021-1551.
Immediate Steps to Take
Immediately apply security patches provided by Cisco to address the vulnerabilities. Ensure that only trusted users have administrative access to the devices.
Long-Term Security Practices
Regularly monitor for security advisories and updates from Cisco. Implement strong password policies and network segmentation to bolster security posture.
Patching and Updates
Stay informed about security updates and patches released by Cisco for the Wireless Access Points. Promptly apply these patches to prevent exploitation of known vulnerabilities.